Sylvester Stallone and ER's Goran Visnjic may want to arrange a play date between their four-legged pals. Sly's got a Boxer named Gangster, while Goran pals around town with his Pug, Bugsy.
Actress Debi Mazar brings toy poodle Dolores to New York City's Le Chien for high society grooming. The pet-pampering locale offers a full list of spa treatments for pets, including holistic baths and hot oil massages.
Not-so-tough guy Leonardo DiCaprio, who stars in the upcoming mafia flick, Gangs of New York, cozies up with a pet dragon lizard and a toy poodle, Rufus.
A pair of Rottweilers named Indo and Zhaki complete Will and Jada Pinkett-Smith's security detail.
Pigs in the city -- George Clooney and Luke Perry are both proud potbellied pig owners. Clooney calls his Max and Perry named his "Jerry Lee" after music idol, Jerry Lee Lewis. Perry also has two Boxers, Chuck and Mac.
Meow...Christina Ricci, Martha Stewart, Regis Philbin, Jay Leno, Just Shoot Me's Enrico Colantoni, and Billy Crystal are just a few of Hollywood's cat lovers. 
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Goran Visnjic: Pierre Leloup/WireImage.com; Debi Mazar, Leonard Di Caprio, Will Smith & Jada Pinkett Smith, George Clooney: Steve Granitz/WireImage.com
